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Finding the Fourth Proportional to 7,339.28, 11,012.16 and 2,965.28

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Solution

The fourth proportional to 7,339.28, 11,012.16 and 2,965.28 is: 4,449.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,339.28 : 11,012.16 = 2,965.28 : x
  2. Step 2: Convert to fraction form
    7,339.28/11,012.16 = 2,965.28/x
  3. Step 3: Cross multiply
    7,339.28x = 11,012.16 × 2,965.28
  4. Step 4: Simplify right side
    7,339.28x = 32,654,082.74
  5. Step 5: Solve for x
    x = 32,654,082.74/7,339.28
  6. Step 6: Final answer
    x = 4,449.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.